Then by making use of the numerical simulation technology, the dredging measure that excavates the ridge which blocks water on the downstream of the spillway can avoid the safety threat of flood.是什么意思_Then by making use of the numerical simulation technology, the dredging measure that excavates the ridge which blocks water on the downstream of the spillway can avoid the safety threat of flood.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句